<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>{{ titleName }}{{ PKC_VERSION }}</title>
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css">
  <style>
    body {
      margin: 0;
      font-family: 'Arial', sans-serif;
      background-color: #0c0c0c;
      color: #ffffff;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      overflow: hidden;
    }

    .login-container {
      background: rgba(20, 20, 20, 0.9);
      border-radius: 10px;
      padding: 2rem;
      box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
      width: 400px;
      position: relative;
      overflow: hidden;
    }

    .login-container h1 {
      text-align: center;
      margin-bottom: 1rem;
      font-size: 2rem;
      color: #00ccff;
    }

    .login-container input {
      width: 100%;
      padding: 1rem;
      margin: 0.5rem 0;
      border: none;
      border-radius: 5px;
      background: #222;
      color: #ffffff;
      font-size: 1rem;
      transition: background 0.3s;
    }

    .login-container input:focus {
      background: #333;
      outline: none;
    }

    .login-container button {
      width: 100%;
      padding: 1rem;
      background: #00ccff;
      border: none;
      border-radius: 5px;
      font-size: 1.2rem;
      color: #ffffff;
      cursor: pointer;
      transition: background 0.3s;
    }

    .login-container button:hover {
      background: #0099cc;
    }

    .message {
      color: #ff0000;
      text-align: center;
      margin-top: 1rem;
    }

    .background-animation {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: -1;
      background: linear-gradient(120deg, #00ccff, #ff00ff);
      animation: gradient 6s ease infinite;
    }

    @keyframes gradient {
      0% {
        background-position: 0% 50%;
      }
      50% {
        background-position: 100% 50%;
      }
      100% {
        background-position: 0% 50%;
      }
    }
  </style>
</head>
<body>
<div class="background-animation"></div>
<div class="login-container">
  <h1>{{ titleName }}</h1>
  {% with messages = get_flashed_messages(with_categories=true) %}
  {% if messages %}
  <div class="message">
    {% for category, message in messages %}
    {% if category != 'success' %}
      <p class="{{ category }}">{{ message }}</p>
    {% endif %}
    {% endfor %}
  </div>
  {% endif %}
  {% endwith %}
  <form method="POST" action="/login">
    <input type="text" id="username" name="username" placeholder="用户名" required>
    <input type="password" id="password" name="password" placeholder="密码" required>
    <button type="submit">登录</button>
  </form>
</div>
</body>
</html>
